调用相册

 1 #import "ViewController.h"
 2
 3 @interface ViewController ()<UIImagePickerControllerDelegate>
 4
 5 @end
 6
 7 @implementation ViewController
 8
 9 - (void)viewDidLoad {
10     [super viewDidLoad];
11
12     UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
13     btn.backgroundColor = [UIColor grayColor];
14     btn.frame = CGRectMake(20, 30, 80, 80);
15     [btn addTarget:self action:@selector(showImagerPicker) forControlEvents:UIControlEventTouchUpInside];
16     [self.view addSubview:btn];
17
18 }
19
20 -(void)showImagerPicker{
21     UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];//创建对象
22     imagePicker.sourceType = 0;//设置类型(相册、相机）
23
24     imagePicker.allowsEditing = YES;//是否允许编辑，默认no，设置为yes时，点击图片会进入编辑界面（裁剪）
25     imagePicker.delegate = self;
26     [self presentViewController:imagePicker animated:YES completion:nil];//弹出相册/相机
27 }
28
29 //选择图片后调用的代理方法
30 -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
31
32     NSLog(@"----%@",info);
33
34     UIImage *image = info[@"UIImagePickerControllerEditedImage"];//获取图片
35     UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
36     imageView.frame = CGRectMake(30, 140, 90, 90);
37     [self.view addSubview:imageView];
38
39     [self dismissViewControllerAnimated:YES completion:nil];//消失imagepicker
40
41 }
42
43 - (void)didReceiveMemoryWarning {
44     [super didReceiveMemoryWarning];
45     // Dispose of any resources that can be recreated.
46 }
47
48 @end